hsrp with multiple vlans | ospf inter area routing | hsrp inter vlan routing | inter-vlan routing on a layer 3 switch

 

OSPF MULTI-AREA | EIGRP | INTER-VLAN ROUTING | HSRP 

Network Topology Documentation

Figure 1: Network Architecture Design

Description of the above Topology: -

Ø   We have a Campus Network Architecture containing two Core Switches with Ether-Channel in between and a WLC directly connected to it below we have two access Switches for redundancy with Criss Cross connectivity.

Ø   We have two no’s of Light-weigh Access Point for redundancy if one of them went down other one can handle the users and also distribute the traffic on the basis of client

Ø   Implemented Multi-Area OSPF with Area-1 on the Campus network end and Area-2 on the Datacentre Network end and in between we have Area-0 .

Ø   EIGRP running on the datacentre Network end and also configured redistribution for Static routes at the campus network end router and at datacentre network router end

Ø   Overall, we have multiple VLANs for segmentation and reduce the broadcasting

Network Topology Documentation

Overview

This document provides an in-depth explanation of the network topology shown in the provided image. The network includes multiple components, such as routers, switches, access points, PCs, laptops, servers, and VLANs, organized into different areas and configurations using OSPF, EIGRP, and HSRP protocols.

Key Components and Details

Campus Network

  1. Core Switches
    • CORSW-1: Catalyst 3560-24PS
    • CORSW-2: Catalyst 3560-24PS
  2. Access Switches
    • ACCESS-SWITCH-1: Catalyst 2960-24TT
    • ACCESS-SWITCH-2: Catalyst 2960-24TT
  3. Wireless Controller
    • WLC-2504
  4. Access Points (AP)
    • AP-1
    • AP-2
  5. End Devices
    • PCs: PC0, PC1, PC2
    • Laptops: Laptop0, Laptop1, Laptop2, Laptop3, Laptop4, Laptop5
  6. VLAN Configuration
    • VLAN 10: HR Department (192.168.1.0/25)
    • VLAN 20: Finance Department (192.168.2.0/25)
    • VLAN 30: IT Department (192.168.3.0/25)
    • VLAN 100: Management (192.168.9.0/25)

 

Router Configuration and OSPF Areas

  1. OSPF Area 0
    • Routers: R1, R2
    • Subnet: 10.1.1.0/30
  2. OSPF Area 1
    • Routers: R1, R3, R4
    • Subnets:
      • 11.1.1.0/30
      • 12.1.1.0/30
  3. OSPF Area 2
    • Routers: R6, R7
    • Subnet: 15.1.1.0/30

Data Centre Network

  1. Core Multilayer Switches
    • Multilayer Switch2 (3650-24PS)
    • Multilayer Switch3 (3650-24PS)
  2. HSRP Configuration
    • Virtual IP Address: 200.1.5.1
    • Active and Standby Roles for Multilayer Switch2 and Multilayer Switch3
  3. EIGRP Configuration
    • Autonomous System: 6500
  4. Servers
    • Server0: 200.1.2.1
    • Server1: 200.1.2.2

Detailed Connections

Campus Core Network

  • CORSW-1 and CORSW-2 are interconnected.
  • CORSW-1 connects to ACCESS-SWITCH-1 and ACCESS-SWITCH-2.
  • CORSW-2 connects to ACCESS-SWITCH-1 and ACCESS-SWITCH-2.
  • CORSW-1 and CORSW-2 connect to the WLC-2504.
  • VLANs segregate traffic based on departments and priorities.

Data Center Network

  • Multilayer Switches are configured with HSRP for redundancy.
  • Multilayer Switch2 and Multilayer Switch3 interconnect through a Layer 3 link.
  • Both switches connect to a common Layer 2 Switch.
  • Servers are directly connected to the Layer 2 Switch.

Routing Protocols

  1. OSPF
    • Ensures efficient routing within the campus and branch areas.
    • Areas are hierarchically structured for scalability.
  2. EIGRP
    • Configured for the data center to ensure optimal path selection and quick convergence.
  3. HSRP
    • Configured in the data center for gateway redundancy.

Security Features

  • VLAN segmentation to isolate network traffic.
  • Redundancy in the core and data center networks.
  • Centralized WLC for wireless security management.

Future Recommendations

  1. Implement IPv6 for future scalability.
  2. Enable QoS for better traffic management.
  3. Utilize network monitoring tools like SNMP and NetFlow for proactive issue detection.

Configuration of Devices


Figure 2: ACCESS-SWICTH-1

Switch> enable

Switch# conf t

Switch(Config)# hostname ACCESS-SWITCH-1

ACCESS-SWITCH-1(Config)# spanning-tree mode pvst

ACCESS-SWITCH-1(Config)# spanning-tree extend system-id

ACCESS-SWITCH-1(Config)# interface FastEthernet0/1

ACCESS-SWITCH-1(Config-if)# switchport access vlan 100

ACCESS-SWITCH-1(Config-if)# switchport mode access

ACCESS-SWITCH-1(Config-if)# interface FastEthernet0/2

ACCESS-SWITCH-1(Config-if)# switchport access vlan 20

ACCESS-SWITCH-1(Config-if)# switchport mode access

ACCESS-SWITCH-1(Config-if)# interface FastEthernet0/3

ACCESS-SWITCH-1(Config-if)# switchport access vlan 20

ACCESS-SWITCH-1(Config-if)# switchport mode access

ACCESS-SWITCH-1(Config-if)# interface FastEthernet0/4

ACCESS-SWITCH-1(Config-if)# switchport trunk native vlan 100

ACCESS-SWITCH-1(Config-if)# switchport trunk allowed vlan 2-1005

ACCESS-SWITCH-1(Config-if)# switchport mode trunk

ACCESS-SWITCH-1(Config-if)# interface FastEthernet0/5

ACCESS-SWITCH-1(Config-if)# switchport trunk native vlan 100

ACCESS-SWITCH-1(Config-if)# switchport trunk allowed vlan 2-1005

ACCESS-SWITCH-1(Config-if)# switchport mode trunk

ACCESS-SWITCH-1(Config-if)# interface Vlan100

ACCESS-SWITCH-1(Config-if)# ip address 192.168.9.1 255.255.255.128

ACCESS-SWITCH-1(Config-if)# no shut

ACCESS-SWITCH-1(Config-line)# line con 0

ACCESS-SWITCH-1(Config-line)# line vty 0 4

ACCESS-SWITCH-1(Config-line)# login

ACCESS-SWITCH-1(Config-line)# line vty 5 15

ACCESS-SWITCH-1(Config-line)# login

ACCESS-SWITCH-1(Config-line)# end

ACCESS-SWITCH-1# show ip int br | inc up

Figure 3: show ip int br | inc up

ACCESS-SWITCH-1# show vlan brief


Figure 4: show vlan brief

ACCESS-SWITCH-1# show interfaces trunk


Figure 5: show interfaces trunk


Figure 6: ACCESS-SWICTH-2

Switch> enable

Switch# conf t

Switch(Config)# hostname ACCESS-SWITCH-1

ACCESS-SWITCH-2(Config)# spanning-tree mode pvst

ACCESS-SWITCH-2(Config)# spanning-tree extend system-id

ACCESS-SWITCH-2(Config)# interface FastEthernet0/1

ACCESS-SWITCH-2(Config-if)# switchport access vlan 100

ACCESS-SWITCH-2(Config-if)# switchport mode access

ACCESS-SWITCH-2(Config-if)# interface FastEthernet0/2

ACCESS-SWITCH-2(Config-if)# switchport access vlan 20

ACCESS-SWITCH-2(Config-if)# switchport mode access

ACCESS-SWITCH-2(Config-if)# interface FastEthernet0/3

ACCESS-SWITCH-2(Config-if)# switchport access vlan 20

ACCESS-SWITCH-2(Config-if)# switchport mode access

ACCESS-SWITCH-2(Config-if)# interface FastEthernet0/4

ACCESS-SWITCH-2(Config-if)# switchport trunk native vlan 100

ACCESS-SWITCH-2(Config-if)# switchport trunk allowed vlan 2-1005

ACCESS-SWITCH-2(Config-if)# switchport mode trunk

ACCESS-SWITCH-2(Config-if)# interface FastEthernet0/5

ACCESS-SWITCH-2(Config-if)# switchport trunk native vlan 100

ACCESS-SWITCH-2(Config-if)# switchport trunk allowed vlan 2-1005

ACCESS-SWITCH-2(Config-if)# switchport mode trunk

ACCESS-SWITCH-2(Config-if)# interface Vlan100

ACCESS-SWITCH-2(Config-if)# ip address 192.168.9.2 255.255.255.128

ACCESS-SWITCH-2(Config-if)# no shut

ACCESS-SWITCH-2(Config-line)# line con 0

ACCESS-SWITCH-2(Config-line)# line vty 0 4

ACCESS-SWITCH-2(Config-line)# login

ACCESS-SWITCH-2(Config-line)# line vty 5 15

ACCESS-SWITCH-2(Config-line)# login

ACCESS-SWITCH-2(Config-line)# end

ACCESS-SWITCH-2# show ip int br | inc up


Figure 7: show ip int br | inc up

ACCESS-SWITCH-2# show vlan brief


Figure 8: show vlan brief

ACCESS-SWITCH-2# show interfaces trunk



Figure 9: show interfaces trunk

Figure 10: CORE-SW-1

Switch> enable

Switch# conf t

Switch(Config)# hostname CORE-SW-1

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.9.25

CORE-SW-1(Config)# Switch# ip dhcp excluded-address 192.168.1.25

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.2.25

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.3.25

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.9.100

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.9.50

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.9.51

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.9.1

CORE-SW-1(Config)# ip dhcp excluded-address 192.168.9.2

CORE-SW-1(Config-dhcp)# ip dhcp pool HR

CORE-SW-1(Config-dhcp)# ip dhcp pool HR-VLAN-10

CORE-SW-1(Config-dhcp)# network 192.168.1.0 255.255.255.128

CORE-SW-1(Config-dhcp)# default-router 192.168.1.25

CORE-SW-1(Config-dhcp)# dns-server 8.8.8.8

CORE-SW-1(Config-dhcp)# ip dhcp pool FINANCE-VLAN-20

CORE-SW-1(Config-dhcp)# network 192.168.2.0 255.255.255.128

CORE-SW-1(Config-chdp)# default-router 192.168.2.25

CORE-SW-1(Config-dhcp)# dns-server 8.8.8.8

CORE-SW-1(Config-dhcp)# ip dhcp pool IT-VLAN-30

CORE-SW-1(Config-dhcp)# network 192.168.3.0 255.255.255.128

CORE-SW-1(Config-dhcp)# default-router 192.168.3.25

CORE-SW-1(Config-dhcp)# dns-server 8.8.8.8

CORE-SW-1(Config-dhcp)# ip dhcp pool mgmt

CORE-SW-1(Config-chdp)#  network 192.168.9.0 255.255.255.128

CORE-SW-1(Config-dhcp)# default-router 192.168.9.25

CORE-SW-1(Config-dhcp)# option 150 ip 192.168.9.100

CORE-SW-1(Config-dhcp)# dns-server 8.8.8.8

CORE-SW-1(Config)# ip routing

CORE-SW-1(Config)# spanning-tree mode pvst

CORE-SW-1(Config-if)# interface Port-channel6

CORE-SW-1(Config-if)# switchport trunk native vlan 100

CORE-SW-1(Config-if)# Switchport trunk allowed vlan 2-1005

CORE-SW-1(Config-if)# Switchport trunk encapsulation dot1q

CORE-SW-1(Config-if)# switchport mode trunk

CORE-SW-1(Config-if)# interface FastEthernet0/1

CORE-SW-1(Config-if)# switchport trunk native vlan 100

CORE-SW-1(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-1(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-1(Config-if)# switchport mode trunk

CORE-SW-1(Config-if)# interface FastEthernet0/2

CORE-SW-1(Config-if)# switchport trunk native vlan 100

CORE-SW-1(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-1(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-1(Config-if)# switchport mode trunk

CORE-SW-1(Config-if)# channel-group 6 mode active

CORE-SW-1 (Config-if)# interface FastEthernet0/3

CORE-SW-1(Config-if)# switchport trunk native vlan 100

CORE-SW-1(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-1(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-1(Config-if)# switchport mode trunk

CORE-SW-1(Config-if)# channel-group 6 mode active

CORE-SW-1(Config-if)# interface FastEthernet0/4

CORE-SW-1(Config-if)# switchport trunk native vlan 100

CORE-SW-1(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-1(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-1(Config-if)# switchport mode trunk

CORE-SW-1(Config-if)# interface FastEthernet0/5

CORE-SW-1(Config-if)# no switchport

CORE-SW-1(Config-if)# ip address 172.168.1.2 255.255.255.252

CORE-SW-1 (Config-if)# duplex auto

CORE-SW-1(Config-if)# speed auto

CORE-SW-1(Config-if)# interface Vlan10

CORE-SW-1(Config-if)# mac-address 000b.be8c.2001

CORE-SW-1(Config-if)# ip address 192.168.1.50 255.255.255.128

CORE-SW-1(Config-if)# standby 10 ip 192.168.1.25

CORE-SW-1(Config-if)# standby 10 priority 250

CORE-SW-1(Config-if)# standby 10 preempt

CORE-SW-1(Config-if)# interface Vlan20

CORE-SW-1(Config-if)# mac-address 000b.be8c.2002

CORE-SW-1(Config-if)# ip address 192.168.2.50 255.255.255.128

CORE-SW-1(Config-if)# standby 20 ip 192.168.2.25

CORE-SW-1(Config-if)# standby 20 priority 250

CORE-SW-1(Config-if)# standby 20 preempt

CORE-SW-1(Config-if)# interface Vlan30

CORE-SW-1(Config-if)# mac-address 000b.be8c.2003

CORE-SW-1(Config-if)# ip address 192.168.3.50 255.255.255.128

CORE-SW-1(Config-if)# standby 30 ip 192.168.3.25

CORE-SW-1(Config-if)# standby 30 priority 250

CORE-SW-1(Config-if)# standby 30 preempt

CORE-SW-1(Config-if)# interface Vlan100

CORE-SW-1(Config-if)# mac-address 000b.be8c.2004

CORE-SW-1(Config-if)# ip address 192.168.9.50 255.255.255.128

CORE-SW-1(Config-if)# standby 100 ip 192.168.9.25

CORE-SW-1(Config-if)# standby 100 priority 250

CORE-SW-1(Config-if)# standby 100 preempt

CORE-SW-1(Config-if)# standby 100 track FastEthernet0/5

CORE-SW-1(Config-if)# ip classless

CORE-SW-1(Config-if)# ip route 0.0.0.0 0.0.0.0 172.168.1.1

CORE-SW-1(Config-if)# ip flow-export version 9

CORE-SW-1(Config-if)# line con 0

CORE-SW-1(Config-if)# line aux 0

CORE-SW-1(Config-if)# line vty 0 4

CORE-SW-1(Config-if)# login

CORE-SW-1(Config)# end

CORE-SW-1# show ip int br | inc up


Figure 11: show ip int br | inc up

CORE-SW-1# show vlan brief


Figure 12: show vlan br

CORE-SW-1# show standby brief


Figure 13: show standby brief

CORE-SW-1# show ip route

Figure 14: show ip route


Figure 15: CORE-SW-2

Switch> enable

Switch # conf t

SwitchConfig)# hostname CORE-SW-2

CORE-SW-2(Config)# ip routing

CORE-SW-2(Config)# spanning-tree mode pvst

CORE-SW-2(Config)# interface Port-channel6

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-2(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-2(Config-if)# switchport mode trunk

CORE-SW-2(Config-if)# interface FastEthernet0/1

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-2(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-2(Config-if)# switchport mode trunk

CORE-SW-2(Config-if)# channel-group 6 mode active

CORE-SW-2(Config-if)# interface FastEthernet0/2

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-2(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-2(Config-if)# switchport mode trunk

CORE-SW-2(Config-if)# channel-group 6 mode active

CORE-SW-2(Config-if)# interface FastEthernet0/3

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-2(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-2(Config-if)# switchport mode trunk

CORE-SW-2(Config-if)# interface FastEthernet0/4

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-2(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-2(Config-if)# switchport mode trunk

CORE-SW-2(Config-if)# interface FastEthernet0/5

CORE-SW-2(Config-if)# switchport trunk native vlan 100

CORE-SW-2(Config-if)# switchport trunk allowed vlan 2-1005

CORE-SW-2(Config-if)# switchport trunk encapsulation dot1q

CORE-SW-2(Config-if)# switchport mode trunk

CORE-SW-2(Config-if)# interface FastEthernet0/6

CORE-SW-2(Config-if)# no switchport

CORE-SW-2(Config-if)# ip address 172.168.2.2 255.255.255.252

CORE-SW-2(Config-if)# duplex auto

CORE-SW-2(Config-if)# speed auto

CORE-SW-2(Config-if)# interface Vlan10

CORE-SW-2(Config-if)# mac-address 0090.215c.2901

CORE-SW-2(Config-if)# ip address 192.168.1.51 255.255.255.128

CORE-SW-2(Config-if)# standby 10 ip 192.168.1.25

CORE-SW-2(Config-if)# standby 10 preempt

CORE-SW-2(Config-if)# interface Vlan20

CORE-SW-2(Config-if)# mac-address 0090.215c.2902

CORE-SW-2(Config-if)# ip address 192.168.2.51 255.255.255.128

CORE-SW-2(Config-if)# standby 20 ip 192.168.2.25

CORE-SW-2(Config-if)# standby 20 preempt

CORE-SW-2(Config-if)# interface Vlan30

CORE-SW-2(Config-if)# mac-address 0090.215c.2903

CORE-SW-2(Config-if)# ip address 192.168.3.51 255.255.255.128

CORE-SW-2(Config-if)# standby 30 ip 192.168.3.25

CORE-SW-2(Config-if)# standby 30 preempt

CORE-SW-2(Config-if)# interface Vlan100

CORE-SW-2(Config-if)# mac-address 0090.215c.2904

CORE-SW-2(Config-if)# ip address 192.168.9.51 255.255.255.128

CORE-SW-2(Config-if)# standby 100 ip 192.168.9.25

CORE-SW-2(Config-if)# standby 100 preempt

CORE-SW-2(Config-if)# standby 100 track FastEthernet0/6

CORE-SW-2(Config-if)# ip classless

CORE-SW-2(Config-if)# ip route 0.0.0.0 0.0.0.0 172.168.2.1

CORE-SW-2(Config-if)# ip flow-export version 9

CORE-SW-2(Config-if)# line vty 0 4

CORE-SW-2(Config-if)# login

CORE-SW-2(Config)# end

CORE-SW-2# show ip int br | inc up


Figure 16: Show ip int br | inc up

 

CORE-SW-2# show vlan br


Figure 17: show vlan br

CORE-SW-2# show standby brief


Figure 18: show standby brief

CORE-SW-2# show ip route


Figure 19: show ip route

Figure 20: R1

Router> hostname R1

R1(Config)# no ip cef

R1(Config)# no ipv6 cef

R1(Config)# license udi pid CISCO1941/K9 sn FTX1524LA5Q-

R1(Config-if)# interface GigabitEthernet0/0

R1(Config-if)# ip address 172.168.1.1 255.255.255.252

R1(Config-if)# duplex auto

R1(Config-if)# speed auto

R1(Config-if)# interface GigabitEthernet0/1

R1(Config-if)# ip address 172.168.2.1 255.255.255.252

R1(Config-if)# duplex auto

R1(Config-if)# speed auto

R1(Config-if)# interface Serial0/0/0

R1(Config-if)# ip address 10.1.1.1 255.255.255.252

R1(Config-if)# ip ospf 1 area 1

R1(Config-if)# clock rate 2000000

R1(Config-if)# interface Serial0/0/1

R1(Config-if)# no ip address

R1(Config-if)# clock rate 2000000

R1(Config-if)# shutdown

R1(Config-if)# interface Vlan1

R1(Config-if)# no ip address

R1(Config-if)# shutdown

R1(Config)#router ospf 1

R1(Config-router)# log-adjacency-changes

R1(Config-router)# redistribute static metric-type 1 subnets tag 25

R1(Config-router)# network 172.168.2.0 0.0.0.3 area 1

R1(Config-router)# network 172.168.1.0 0.0.0.3 area 1

R1(Config)# ip classless

R1(Config)# ip route 192.168.0.0 255.255.0.0 172.168.1.2

R1(Config)# ip route 192.168.0.0 255.255.0.0 172.168.2.2 2

R1(Config)# ip flow-export version 9

R1(Config-line)# line con 0

R1(Config-line)# line aux 0

R1(Config-line)# line vty 0 4

R1(Config-line)# login

R1(Config)#end

R1# show ip route


Figure 21: R1 Show ip route

Figure 22: R2

Router>enable

Router# conf t

Router(Config)# hostname R2

R2(Config)# no ip cef

R2(Config)# no ipv6 cef

R2(Config)# license udi pid CISCO1941/K9 sn FTX1524DLFO-

R2(Config)# interface GigabitEthernet0/0

R2(Config-if)# ip address 11.1.1.1 255.255.255.252

R2(Config-if)# ip ospf 1 area 0

R2(Config-if)# duplex auto

R2(Config-if)# speed auto

R2(Config-if)# interface GigabitEthernet0/1

R2(Config-if)# ip address 12.1.1.1 255.255.255.252

R2(Config-if)# ip ospf 1 area 0

R2(Config-if)# duplex auto

R2(Config-if)# speed auto

R2(Config-if)# interface Serial0/0/0

R2(Config-if)# ip address 10.1.1.2 255.255.255.252

R2(Config-if)# ip ospf 1 area 1

R2(Config-if)# interface Serial0/0/1

R2(Config-if)# no ip address

R2(Config-if)# clock rate 2000000

R2(Config-if)# shutdown

R2(Config-if)# interface Serial0/1/0

R2(Config-if)# no ip address

R2(Config-if)# clock rate 2000000

R2(Config-if)# shutdown

R2(Config-if)# interface Serial0/1/1

R2(Config-if)# no ip address

R2(Config-if)# clock rate 2000000

R2(Config-if)# shutdown

R2(Config-if)# interface Vlan1

R2(Config-if)# no ip address

R2(Config-if)# shutdown

R2(Config)#router ospf 1

R2(Config-router)# log-adjacency-changes

R2(Config)# ip classless

R2(Config)# ip flow-export version 9

R2(Config)# line con 0

R2(Config)# line aux 0

R2(Config)# line vty 0 4

R2(Config-line)# login

R2(Config)# end

 

R2# show ip route

Figure 23: Show ip route

Figure 24: R3

Router> enable

Router# conf t

Router(Config)# hostname R3

R3(Config)# ip cef

R3(Config)# no ipv6 cef

R3(Config)# license udi pid CISCO1941/K9 sn FTX1524S2DF-

R3(Config-if)# interface GigabitEthernet0/0

R3(Config-if)# ip address 11.1.1.2 255.255.255.252

R3(Config-if)# ip ospf 1 area 0

R3(Config-if)# duplex auto

R3(Config-if)# speed auto

R3(Config-if)# interface GigabitEthernet0/1

R3(Config-if)# ip address 13.1.1.1 255.255.255.252

R3(Config-if)# ip ospf 1 area 0

R3(Config-if)# duplex auto

R3(Config-if)# speed auto

R3(Config-if)# interface Vlan1

R3(Config-if)# no ip address

R3(Config-if)# shutdown

R3(Config)# router ospf 1

R3(Config-router)# log-adjacency-changes

R3(Config)# ip classless

R3(Config)# ip flow-export version 9

R3(Config)# line con 0

R3(Config-line)# line aux 0

R3(Config-line)# line vty 0 4

R3(Config-line)# login

R3#end

 

R3# show ip route

Figure 25: show ip route


Figure 26: R4

Router> enable

Router# conf t

Router(Config)# hostname R4

R4(Config)# ip cef

R4(Config)# no ipv6 cef

R4(Config)# license udi pid CISCO1941/K9 sn FTX15243N4S-

R4(Config)# interface GigabitEthernet0/0

R4(Config-if)# ip address 12.1.1.2 255.255.255.252

R4(Config-if)# ip ospf 1 area 0

R4(Config-if)# duplex auto

R4(Config-if)# speed auto

R4(Config-if)# interface GigabitEthernet0/1

R4(Config-if)# ip address 14.1.1.1 255.255.255.252

R4(Config-if)# ip ospf 1 area 0

R4(Config-if)# duplex auto

R4(Config-if)# speed auto

R4(Config-if)# interface Vlan1

R4(Config-if)# no ip address

R4(Config-if)# shutdown

R4(Config)#router ospf 1

R4(Config-router)# log-adjacency-changes

R4(Config-router)# ip classless

R4(Config)# ip flow-export version 9

R4(Config-line)# line con 0

R4(Config-line)# line aux 0

R4(Config-line)#line vty 0 4

R4(Config-line)#login

R4#end

 

R4# show ip route


Figure 27: show ip route

Figure 28: R5

Router> enable

Router# Conf t

Router(Config)# hostname R5

R5(Config)#

R5(Config)# no ip cef

R5(Config)# no ipv6 cef

R5(Config)# license udi pid CISCO1941/K9 sn FTX1524JP54-

R5(Config-if)# interface GigabitEthernet0/0

R5(Config-if)# ip address 14.1.1.2 255.255.255.252

R5(Config-if)# ip ospf 1 area 0

R5(Config-if)# duplex auto

R5(Config-if)# speed auto

R5(Config-if)# interface GigabitEthernet0/1

R5(Config-if)# ip address 13.1.1.2 255.255.255.252

R5(Config-if)# ip ospf 1 area 0

R5(Config-if)# duplex auto

R5(Config-if)# speed auto

R5(Config-if)# interface Serial0/0/0

R5(Config-if)# ip address 15.1.1.1 255.255.255.252

R5(Config-if)# ip ospf 1 area 2

R5(Config-if)# clock rate 2000000

R5(Config-if)# interface Serial0/0/1

R5(Config-if)# no ip address

R5(Config-if)# clock rate 2000000

R5(Config-if)# shutdown

R5(Config-if)# interface Serial0/1/0

R5(Config-if)# no ip address

R5(Config-if)# clock rate 2000000

R5(Config-if)# shutdown

R5(Config-if)# interface Serial0/1/1

R5(Config-if)#  no ip address

R5(Config-if)#  clock rate 2000000

R5(Config-if)#  shutdown

R5(Config-if)# interface Vlan1

R5(Config-if)#  no ip address

R5(Config-if)#  shutdown

R5(Config-router)# router ospf 1

R5(Config-router)# log-adjacency-changes

R5(Config)# ip classless

R5(Config)# ip flow-export version 9

R5(Config-line)# line con 0

R5(Config-line)# line aux 0

R5(Config-line)# line vty 0 4

R5(Config-line)# login

R5# end

 

R5# show ip route


Figure 29: show ip route 


Figure 30: R6

Router> enable

Router# conf t

Router(Config)# hostname R6

R6(Config)# no ip cef

R6(Config)# no ipv6 cef

R6(Config)# license udi pid CISCO1941/K9 sn FTX1524S8E6-

R6(Config-if)# interface GigabitEthernet0/0

R6(Config-if)# ip address 200.1.1.1 255.255.255.252

R6(Config-if)# duplex auto

R6(Config-if)# speed auto

R6(Config-if)# interface GigabitEthernet0/1

R6(Config-if)# ip address 200.1.2.1 255.255.255.252

R6(Config-if)# duplex auto

R6(Config-if)# speed auto

R6(Config-if)# interface Serial0/0/0

R6(Config-if)# ip address 15.1.1.2 255.255.255.252

R6(Config-if)# ip ospf 1 area 2

R6(Config-if)# interface Serial0/0/1

R6(Config-if)# no ip address

R6(Config-if)# clock rate 2000000

R6(Config-if)# shutdown

R6(Config-if)# interface Vlan1

R6(Config-if)# no ip address

R6(Config-if)# shutdown

R6(Config)# router eigrp 6500

R6(Config-router)# redistribute ospf 1 metric 1 1 1 1 1500

R6(Config-router)# network 200.1.1.0 0.0.0.3

R6(Config-router)# network 200.1.2.0 0.0.0.3

R6(Config-router)# router ospf 1

R6(Config-router)# log-adjacency-changes

R6(Config-router)# redistribute eigrp 6500 metric 110 subnets tag 24

R6(Config)# ip classless

R6(Config)# ip flow-export version 9

R6(Config-line)# line con 0

R6(Config-line)# line aux 0

R6(Config-line)# line vty 0 4

R6(Config-line)# login

R6# end

R6# show ip route


Figure 31: show ip route

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